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/**
* Tests that index building is properly blocked and/or aborted during a shard split.
*
* @tags: [
* incompatible_with_eft,
* incompatible_with_macos,
* incompatible_with_windows_tls,
* requires_majority_read_concern,
* requires_persistence,
* serverless,
* requires_fcv_62
* ]
*/
(function() {
"use strict";
load("jstests/libs/fail_point_util.js");
load("jstests/replsets/libs/tenant_migration_test.js");
load("jstests/serverless/libs/shard_split_test.js");
const shardSplitTest = new ShardSplitTest({
recipientTagName: "recipientNode",
recipientSetName: "recipient",
quickGarbageCollection: true
});
shardSplitTest.addRecipientNodes();
const kTenantId = "testTenantId1";
const tenantIds = [kTenantId];
const kUnrelatedTenantId = "testTenantId2";
const kDbName = shardSplitTest.tenantDB(kTenantId, "testDB");
const kUnrelatedDbName = shardSplitTest.tenantDB(kUnrelatedTenantId, "testDB");
const kEmptyCollName = "testEmptyColl";
const kNonEmptyCollName = "testNonEmptyColl";
const kNewCollName1 = "testNewColl1";
const donorPrimary = shardSplitTest.donor.getPrimary();
// Attempts to create an index on a collection and checks that it fails because a split committed.
function createIndexShouldFail(
primaryHost, dbName, collName, indexSpec, errorCode = ErrorCodes.TenantMigrationCommitted) {
const donorPrimary = new Mongo(primaryHost);
const db = donorPrimary.getDB(dbName);
assert.commandFailedWithCode(db[collName].createIndex(indexSpec), errorCode);
}
// Attempts to create an index on a collection and checks that it succeeds
function createIndex(primaryHost, dbName, collName, indexSpec) {
const donorPrimary = new Mongo(primaryHost);
const db = donorPrimary.getDB(dbName);
assert.commandWorked(db[collName].createIndex(indexSpec));
}
const operation = shardSplitTest.createSplitOperation(tenantIds);
// Put some data in the non-empty collections, and create the empty one.
const db = donorPrimary.getDB(kDbName);
const unrelatedDb = donorPrimary.getDB(kUnrelatedDbName);
assert.commandWorked(db[kNonEmptyCollName].insert([{a: 1, b: 1}, {a: 2, b: 2}, {a: 3, b: 3}]));
assert.commandWorked(
unrelatedDb[kNonEmptyCollName].insert([{x: 1, y: 1}, {x: 2, b: 2}, {x: 3, y: 3}]));
assert.commandWorked(db.createCollection(kEmptyCollName));
// Start index builds and have them hang in the builder thread. This fail point must be an
// interruptible one. The index build for the migrating tenant will be retried once the split is
// done.
var initFpCount =
assert
.commandWorked(donorPrimary.adminCommand(
{configureFailPoint: "hangAfterInitializingIndexBuild", mode: "alwaysOn"}))
.count;
const abortedIndexThread =
new Thread(createIndexShouldFail, donorPrimary.host, kDbName, kNonEmptyCollName, {b: 1});
const unrelatedIndexThread =
new Thread(createIndex, donorPrimary.host, kUnrelatedDbName, kNonEmptyCollName, {y: 1});
abortedIndexThread.start();
unrelatedIndexThread.start();
assert.commandWorked(donorPrimary.adminCommand({
waitForFailPoint: "hangAfterInitializingIndexBuild",
timesEntered: initFpCount + 2,
maxTimeMS: kDefaultWaitForFailPointTimeout
}));
// Start an index build and pause it after acquiring a slot but before registering itself.
const indexBuildSlotFp = configureFailPoint(donorPrimary, "hangAfterAcquiringIndexBuildSlot");
jsTestLog("Starting the racy index build");
const racyIndexThread =
new Thread(createIndexShouldFail, donorPrimary.host, kDbName, kNonEmptyCollName, {a: 1});
racyIndexThread.start();
indexBuildSlotFp.wait();
jsTestLog("Starting a shard split and pausing after majority-committing the initial state doc.");
const afterBlockingFp = configureFailPoint(donorPrimary, "pauseShardSplitAfterBlocking");
const splitThread = operation.commitAsync();
afterBlockingFp.wait();
// Release the previously-started index build thread and allow the donor to abort index builds
assert.commandWorked(donorPrimary.adminCommand(
{configureFailPoint: "hangAfterInitializingIndexBuild", mode: "off"}));
jsTestLog("Waiting for the unrelated index build to finish");
unrelatedIndexThread.join();
// Release the racy thread; it should block.
indexBuildSlotFp.off();
// Attempts to create indexes on existing collections should fail.
const emptyIndexThread =
new Thread(createIndexShouldFail, donorPrimary.host, kDbName, kEmptyCollName, {a: 1});
emptyIndexThread.start();
const nonEmptyIndexThread =
new Thread(createIndexShouldFail, donorPrimary.host, kDbName, kNonEmptyCollName, {a: 1});
nonEmptyIndexThread.start();
jsTestLog("Allowing migration to commit");
afterBlockingFp.off();
assert.soon(() => {
const state =
ShardSplitTest.getTenantMigrationAccessBlocker({node: donorPrimary, tenantId: kTenantId})
.donor.state;
return state === TenantMigrationTest.DonorAccessState.kBlockWritesAndReads ||
state === TenantMigrationTest.DonorAccessState.kReject;
});
splitThread.join();
assert.commandWorked(splitThread.returnData());
assertMigrationState(donorPrimary, operation.migrationId, "committed");
// The index creation threads should be done.
racyIndexThread.join();
abortedIndexThread.join();
emptyIndexThread.join();
nonEmptyIndexThread.join();
// Should not be able to create an index on any collection.
assert.commandFailedWithCode(db[kEmptyCollName].createIndex({b: 1}),
ErrorCodes.TenantMigrationCommitted);
assert.commandFailedWithCode(db[kNonEmptyCollName].createIndex({b: 1}),
ErrorCodes.TenantMigrationCommitted);
// Creating an index on a non-existent collection should fail because we can't create the
// collection, but it's the same error code.
assert.commandFailedWithCode(db[kNewCollName1].createIndex({b: 1}),
ErrorCodes.TenantMigrationCommitted);
operation.forget();
shardSplitTest.cleanupSuccesfulCommitted(operation.migrationId, tenantIds);
shardSplitTest.stop();
})();
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